baber/WOPTO huggingface dataset:
Patent GB-556639-A (GB)
Title: Record making apparatus
IPC: G06K13/18
Filed: 1942-03-10
Abstract: 556,639. Recording apparatus; punching apparatus. WILLIAMS, W. P. (Standard Register Co). March 10, 1942, No. 3171. [Class 106 (i)] [Also in Group VIII] A recording apparatus for sales transactions or other data comprises a feeding means for a record strip, a device for punching or impressing identification marks on succeeding portions of the record strip and two means, responsive to the action of the record identifying device for preventing operation of the feeding mechanism, one of said means being normally inoperative and the other normally operative. As shown applied to an autographic register, Figs. 3 and 6, with a positive feeding means for the record strips driven by a motor 8 the identification means comprises a housing 10, with a plurality of depressible punches 11, 11<SP>1</SP>, and a pair of slides 17, 18 co-operable with cam surfaces 15, 16 on the punches to control the operative movement of the motor trip lever 9. The slide 17 is normally positioned out of the path of movement of the trip lever 9 and is returned to this position on retraction of the actuated punch by a spring 20. The slide 18 is retained in its operated position by a frictional detent 18a and is formed with two notches 21 with a partition 22 which normally is aligned with the trip lever 9. When a punch is actuated the displaced slide 18 frees the trip lever for operation to advance the record strips after the punch has produced its identification perforation in the strips. After each operation the slide 18 is returned to initial position by the engagement of a lug 27 on the slide with a locating notch in a slide 25 operated by a cam 28 on the shaft of the strip feeding wheels 7. In a modification, Fig. 7, an electrical circuit control is provided ; the motor circuit is normally open and is closed preparatory to the operation of the trip lever 9 by depression of the punch. Each punch plunger carries a conducting collar 31 interconnected in series in the main circuit 32. The slides are replaced by a single slide 181 carrying an insulated bridging contact plate 33 co-operating with a contact 34 and spaced contacts 35. When the slide is displaced one or other contacts 35 is engaged but the circuit is not completed until the depressed plunger' is restored. The return of the plunger may complete the circuit to start the motor or may condition a switch 36 for manual operation by the trip lever 9.
Patent GB-425566-A (GB)
Title: Improvements in or relating to telephone instrument circuits
IPC: H04M1/58
Filed: 1934-01-31
Abstract: 425,566. Substation circuits. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and WIGAN, E. R., 18, Cambridge Road, Lee, both in London. Jan. 31, 1934, No. 3238. Addition to 372,400. [Class 40 (iv)] The anti-side-tone circuit described in the parent Specification comprising two impedances R1, R2 and a threewinding induction coil L1 .. L3 is modified for use with a local talking-battery on a long common - battery - signalling line. For this purpose, the transmitter T, one of the impedances R2, and one induction-coil winding L3 are connected in series with a local battery LB in a closed loop, and this loop in series with the receiver R forms a branch circuit in parallel with the other impedance R1. The second winding L2 of the coil is traversed by the whole of the line current and the remaining winding L1 is connected either as shown or in series with R1. The ends of the windings of the impedances and induction coil may be brought out on to terminals so that changes of wiring such as the disconnection or short-circuiting of impedance R2 for use in a particular situation may readily be made. The resistance of the whole circuit may be reduced by connecting across the line terminals a high-impedance low-resistance choke. Specification 407,808 is referred to.
Patent GB-639435-A (GB)
Title: Improvements in or relating to the production of ethyl chloride
IPC: C07C17/10
Filed: 1948-02-06
Abstract: A continuous process for the production of ethyl chloride comprises reacting 3 to 5, preferably 5, volumes of ethane with 1 volume of chlorine at 450 DEG  to 500 DEG  C. with a contact time of from 0.3 to 1.0, preferably 0.3 to 0.5 secs., removing ethylene from the reaction gases by conversion to ethylene dichloride by passing the gaseous reaction products with an amount of chlorine equal to the molar equivalent of the ethylene present through a subsidiary reactor at 15 DEG  to 70 DEG  C. containing an additive chlorination catalyst comprising cupric chloride and active alumina, with a contact time of at least 3 secs., subsequently isolating ethyl chloride and recycling unreacted ethane.  With the higher ethane/chlorine ratios it is necessary to preheat the reactants before entering the main reactor. The recycle gas preferably contains 5 to 10 per cent of ethylene and up to 2-5 per cent by volume of ethyl chloride.  A small amount of propylene may be present in which case allyl chloride, propylene dichloride and isopropyl chloride are also obtained.  Oxygen should not be present.  The products of the reaction which are normally unreacted ethane, hydrogen chloride, ethyl chloride and a small p amount of dichloroethanes are treated by conventional methods for removal of hydrogen chloride, dried and separated by distillation. In examples: (1) the ethylene content of the make-up ethane is reduced below 1 per cent by a preliminary treatment with chlorine in the presence of a cupric chlorideactive alumina catalyst and then chlorinated with 13,300 parts of chlorine in the main reactor with an ethane/chlorine ratio of 5/1 volumes at approximately 450 DEG  C. and then with 800 parts of additional chlorine in the subsidiary reactor at 15 DEG  C. to yield ethyl chloride, ethylene dichloride and ethylidene dichloride; in (2) the ethane is heated to 100-105 DEG  C. before mixing with chlorine and passing to the main reactor conditions and products otherwise being the same except that 28,850 parts of chlorine were reacted in the main reactor and 1700 parts of chlorine reacted in the subsidiary reactor.  Specification 338,742, [Class 2 (iii)], is referred to.
Patent GB-252052-A (GB)
Title: Improvements in or relating to automatic telephone exchanges
IPC: H04Q3/00
Filed: 1925-02-07
Abstract: 252,052. Rushen, P. C., (Lorenz Akt.- Ges., C.). Feb. 7, 1925. Automatic exchange systems.-A system in which lines are arranged in groups of, say, twenty, is provided at each selecting stage with relays which by their operation or non-operation determine which of the corresponding numerical selectors shall extend the connection, all such relays being controlled in succession by a preliminary digit which is recorded on a step-by-step switch. This switch has as many wipers as there are selecting stages, the wipers being connected up in turn by a second step-by-step switch which advances one step for each digit. Thus in the 8000-line system shown in Fig. 1, the preliminary digit which may be 1, 2, - - 8 and is recorded on a switch W <1> determines which of two group selectors IGS shall be employed and also controls relays Q<I>, Q<II> to select one out of four connectors The system may be extended to 16000-lines by marking one or other of two groups of trunks outgoing from the banks of preliminary selectors IIVW, Fig. 2, and in a similar manner to 20000 lines. 8000-line system, Fig. 1. The preliminary digit 6 (say) is repeated by relay A over contact x, a2, nd<11>1 to the stepping magnet D<I> of switch W<I>. Relay U operates in parallel with magnet D<I> and on releasing at the end of the digit causes magnet D<II> to advance switch W<II> one step. Wiper k1 is now connected to the b-wire and, since the 6th terminal is earthed, causes the connecting relay (not shown) at the group-selecting stage to operate so that the next (group-selecting or hundreds) digit which is repeated over contact a1 and the a-wire passes to the lower group selector IGS. The switch W<II> again moves a step and wiper k2 is connected over sequence switch contact S<I> to relay Q<I> which since the 6th contact of wiper k2 is not earthed does not operate. The tens digit passes over the a-wire and contact S<v> to relay Y which repeats it over contact S<VI> to the intermediate selector HW from which it is subsequently transferred to the connector. At the end of the tens digit, switch W<II> connects up wiper k3 which is earthed and causes relay Q<II> to operate and lock up over contact S<IV>. The units digit is then repeated by relays A, Y over the a-wire and contacts S<III> q<I>1, q<II>1 to a connector of the second hundred. 16000-line system, Fig. 2. The system shown in Fig. 1 is extended to include a further 8000 lines by providing a further numerical selection at the second preliminary selector IIVW the test relay P being made operative over one or other group according to the setting of an extra wiper k<o> of the switch W<I>. For this purpose the preliminary digit or digits may be 1, 2 - - 16, the wiring of the banks of wipers k1 - - k3 being the same for contacts 9-16 as for contacts 1-8. A further extension so as to provide a 20000-line system (which will thus have only one real groupselecting stage) may be effected by utilizing contacts 17-20 of the switch W<I>.
Patent GB-894440-A (GB)
Title: Vehicle washer
IPC: B60S3/06
Filed: 1961-01-31
Abstract: 894,440. Washing vehicles. SERVICE METAL FABRICATORS Inc. Jan. 31, 1961 [Aug. 22, 1960], No. 3643/61. Class 138 (1). Apparatus for washing the lower side panels of motor-vehicles includes a horizontal arm, angularly adjustable about its own axis and supported at one end in a support which is pivotable about a vertical axis, the arm carrying at its free end a rotary brush which can be angularly adjusted in a plane containing the axis of the arm; and power means being provided for rotating the brush. The vehicle 10 passes between a handed pair of stands 12 (one only shown), each carrying a rotary brush 13 at the free end of a horizontal, cylindrical arm 14 which is swing- able about the vertical axis of a supporting post 20 journalled in stand 12. Arm 14 extends slidably and rotatably through a head 15 supported on the post 20 and carrying tapered bushes 16 which can be drawn up by screws 17 against arm 14 to clamp it in its adjusted position. An arm 18 is pivotally connected by a bolt 19 to the arm 14 and may be positioned angularly relative to the latter by a bolt 21 passing through arm 14 and a slot 22 in arm 18. Arm 18 rigidly carri.s a housing 23 in which a shaft 24 for the brush is journalled and on top of which is carried a driving motor 25 and speed reducer 26 for driving shaft 24. A fluid motor 28 pivotally connected to an arm 27 carried by post 20 rotates the latter to move and maintain brush 13 in engagement with the vehicle side. Such movement of brush 13 may be limited by a stop 29 secured to post 20 and engagable with a fixed projection on stand 12. Stand 12 carries a vertical spray pipe (not shown) located to supply water and detergent to the vehicle prior to brushing. Operation of the spray means and of the brushes may be initiated by a trip switch operated by the approaching vehicle.
Patent GB-1023750-A (GB)
Title: Improvements in electrotype method and apparatus
IPC: B32B15/08
Filed: 1965-01-27
Abstract: 1,023,750. Printing-surfaces. ELECTROGRAPHIC CORPORATION. Jan. 27, 1965 [June 2, 1964], No. 3654/65. Heading B6C. [Also in Division B5] A printing plate comprising a copper or aluminium electrotype having on its underside a cast and machined layer of plastic material such as polybutadiene/acrylonitrile/styrene or of low-melting alloy or lead and having a backing plate of metal, plastic or other rigid material, is compacted by applying straight line pressure across the plate, locking the components against relative movement, and moving the line of pressure over the area of the plate. The pressure may be applied by a pair of rollers 27, 55 and the locking means comprises spring- pressure studs 47 which engage notches in the backing plate and other components and which are housed in recesses in the roller 27 spaced to accommodate different widths of the plate. The roller 27 contains an electric heater 29 and is driven through means 36 by an electric motor 38. The roller 55 has a soft rubber surface 56 and is mounted in a frame 63, 64 hinged at 70 and lockable, when the roller is brought down over roller 27, by a plate 79 carried on a lever 75 itself held down by detent means. The spacing between the rollers is adjustable by screws 68, 69 engaging sliding bearing blocks 60, 61. In use the components of the printing plate are assembled on the roller 27, being held in position by the studs 47 engaging recesses located at about the centre line of the plate; the roller 55 is then brought down and locked in position and the plate roller pressed over to whole surface by forward and reverse operation of the motor 38. Both flat and curved plates may be so pressed.
Patent GB-648346-A (GB)
Title: Meat slicing and like machines
IPC: B24B3/46
Filed: 1948-02-09
Abstract: 648,346. Sharpening slicing-machine cutters. METCALFE IDEAL PRODUCTS, Ltd., and McMILLAN, J. Feb. 9, 1948, No. 3683. [Class 60] [Also in Group VI] In a meat-slicing or like machine having a circular knife 11 rotatable about an axis inclined to the vertical and a sharpening unit which is at the opposite side of the knife from the comestible to be sliced when in the inoperative position and is movable about a fixed axis 13, the sharpening unit is disposed to be adjacent to, and to coact with, the lower edge of the knife. A guard 25, pivoted at 34, is arranged to move the sharpening unit into operative position when it is swung away from the knife. This is accomplished by the provision of an arm 21 which is secured to the guard and provided with projections 19, 20 to co-operate with projections 17, 18 on the sharpening unit so that as the guard is raised the arm 21 moves the unit to its sharpening position. The guard also carries a blade 28 having an indentation 30 for engagement with a spring-loaded ball or the like mounted in the machine frame to hold it in the raised position. The pivot 34 is adapted to enable the guard to be detached from the machine. Specification 648,347 is referred to.
Patent GB-539156-A (GB)
Title: Improvements in or relating to the production of cellulose esters
IPC: C08B3/22
Filed: 1940-02-28
Abstract: 539,156. Cellulose esters. BRITISH CELANESE, Ltd. Feb. 28, 1940, No. 3704. Convention date, Feb. 28, 1939. [Class 2 (ii)] To the primary solution containing an organic ester of cellulose, the excess anhydride employed in the esterification, and an acid catalyst comprising sulphuric acid or a derivative thereof, there is added an amount of water just sufficient to convert the anhydride to acid, a further amount of water corresponding to 6-12 per cent. of the weight of cellulose ester in the primary solution and a halide of a polyvalent metal in amount at least equivalent to the acid catalyst. The cellulose ester is' allowed to ripen at a low temperature and is then precipitated from the solution. The precipitated product is obtained in a fibrous condition. The process enables cellulose esters of high acyl content, e.g. cellulose acetates of acetyl value above 55 per cent, and capable of being dissolved completely in acetone, to be obtained. The temperature of ripening may be 18‹-30‹C. The process is applicable to the production of cellulose acetate, propionate, butyrate, acetopropionate, or other cellulose ester. The products obtained have high heat stability and are resistant to de-lustring agents. Films made from the cellulose esters have a high resistance to blushing, distortion, and cockling. Fabrics may be dyed at elevated temperatures without loss of lustre. The Specification as open to inspection under Sect. 91 comprises also ripening processes in which the polyvalent metal halide is omitted, and in which the range of water added in addition to that required for conversion of the anhydride is 3.6-28.8 per cent of the weight of cellulose ester. This subject-matter does not appear in the Specification as accepted.
Patent GB-1551626-A (GB)
Title: Bearing support device for air-driven turbine operated handpiece in dentistry
IPC: F01D15/06
Filed: 1977-01-31
Abstract: In order to improve centring and to extend its useful life, the dental handpiece has an annular bearing support member (8) which is supported against the front face of the bearing element (7) which faces it in the thrust direction. The bearing support member (8) is secured against rotation in a position in which the air inlet and outlet for the blade unit (2) are exposed. The bearing element (7) is secured against displacement in the axial direction or in a direction intersecting the axis by a pressure force acting upon the bearing support member (8) in the thrust direction. <IMAGE>
Patent GB-976438-A (GB)
Title: Production of aromatic halogen-containing compounds
Inventor: MCCALL ERNEST BRYSON
IPC: C07C17/35
Filed: 1962-02-01
Abstract: Halogen-substituted aromatic compounds are produced by thermal decomposition of the vapour of aromatic sulphonyl halides so that sulphur-dioxide is evolved and a halogen atom appears in the aromatic nucleus.  It is preferred to catalyze the decomposition with Pt, Pd, Cu or an oxide or halide thereof.  Examples describe the production of chlorobenzene and fluorobenzene. The following reaction products are also specified:-bromobenzene, o-, m- and p-difluorobenzenes, o- and m-dichlorobenzenes, m- and p-dibromobenzenes, m-chlorobromo-benzene, 2, 4-dibromotoluene, 2-chloro-6-iodo-ethylbenzene; p-chloro, m-bromo- and 2, 41-difluorodiphenyl, 2, 21-difluorodiphenyl ether; 2-bromo-, 1, 5-dichloro- and 1, 3, 6-tribromo-naphthalene- and 4-bromodibenzothiophene. Mention is made of the use of aromatic sulphonyl halides containing benzene, diphenyl, naphthalene, benzofuran, thiophene and pyridine nuclei generally. Specification 959,605 also is referred to.
Patent GB-582730-A (GB)
Title: Improvements in and relating to machines for washing and grading sand
IPC: B03B5/26
Filed: 1944-03-03
Abstract: 582,730. Wet separating. SEELY, J. A. March 3, 1944, No. 3977. [Class 82 (ii)] A machine for washing and grading sand is provided with at least two lifters dipping into a tank and a perforated baffle between the lifters or baffles between successive lifters, the baffles grading the sand in the water flowing through the tank. The lifters may be of the kind described in Specification 379,005, the scoops of the first lifter having perforations of a larger size than the perforations in the next and so on. The sand is fed into a shoot or gutter 5 extending across the sloping side 3 of tank 1 and having a perforated bottom comprising sections 5a, 5b and 5c of progressively larger mesh. Rotary lifters 8, 9 provided respectively with perforated scoops 8a, 9a, the perforations in the scoop 8a being larger than those in the scoop 9a, are mounted on a shaft 7 mounted in bearings 10 and driven by gearing 13 from a motor 12 and a perforated baffle 14 is provided in the tank between the lifters and a similar baffle 15 between the lifter 9 and an overflow weir in the opposite side of the tank 3 to the shoot 5. The lifters deliver their sand on to shoots 16 and to assist in dewatering the sand; the lifters may be jolted or vibrated.
Patent GB-138905-A (GB)
Title: Improvements in apparatus for washing coal and other minerals
IPC: B03B5/06
Filed: 1920-02-10
Abstract: 138,905. Habets, P., and France, A. Aug. 12, 1913, [Convention date]. Addition to 22655/12. Upward-current classifiers.-To enable the washer described in the parent Specification to deal with large materials, the washing elements are formed of special shape or are provided with means for varying their dimensions. The compartment a into which the upward current is admitted may comprise a portion with parallel walls f, Fig. 1, and a portion with inclined walls e; or the dimensions may be varied by means of an adjustable baffle l, Fig. 3, which may have a horizontal part k sliding on the bottom of the launder b. In other forms, a pivoted flap may be provided; or an adjustable vertical baffle such as l may be combined with two pivoted flaps the upper of which rests on the bottom of the launder b. A vertical baffle r may be provided at the inlet side of the washing element. Specification 5519/13 is referred to.
Patent GB-161769-A (GB)
Title: Improvements relating to the mounting of spindles of self acting mules
IPC: D01H3/06
Filed: 1920-02-11
Abstract: 161,769. Rushton, J. L. Feb. 11, 1920. Mules; spindle apparatus.-The spindle bolster 2 is carried by a plate 4 superposed on and welded or otherwise secured to another plate 5 and secured to the bolster bracket 3. The opposite edges 6, 7 of the plates 4, 5 are bent over at a suitable angle. The plate 4 being thinner than the usual plate, its front edge can be cut or sheared true instead of having to be machined.
Patent GB-678814-A (GB)
Title: Improvements in or relating to knee-joints for the legs of drawing instruments
Inventor: GILES WILLIAM HERBERT
IPC: B43L9/18
Filed: 1950-02-21
Abstract: 678,814. Mathematical drawing appliances. THORNTON, Ltd., A. G. May 10, 1951 [Feb. 21, 1950], No. 4364/50. Class 97 (iii). In a compass or like drawing instrument having a joint between a compass leg and a socket element for attaching a lengthening bar to the leg, the said joint is so constructed that the socket may be pivoted back through the position of alignment with the compass leg so as to increase -the span of the compass without increasing the included angle at the main hinge. As shown, the leg 2 and the socket 4 have a tongue-andgroove connection transferred by the hinge pin 5 and the side walls 1 of the groove in the leg have arcuate ends coaxial with the hinge to mate with complementary arcuate abutments 3 on the socket 4 at the base of the tongue.
Patent GB-467730-A (GB)
Title: A new, or improved construction of propeller-aperture, and rudder-post for single screw ships
IPC: B63B3/14
Filed: 1937-02-15
Abstract: 467,730. Stern-frames. KILGOUR, J. Feb. 15, 1937, No. 4419. [Class 113 (ii)] In a stern - frame construction for ships the rudder post is formed integral with the ship's framing by extending downwards a closely spaced pair D of the aft frames. The propeller post L is constructed as a separate casting and is connected at its base by the sole piece F to the foot of the rudder post. The rudder pintles and gudgeons J are separate castings or forgings and are riveted or welded to the rudder post. The rudder post is plated over and in the forward direction the plating streamlined. The arch N of the aperture is also plated and is connected to the rudder post by the gusset P.
Patent GB-1107292-A (GB)
Title: The preparation of ªŠ-caprolactone
IPC: C07D315/00
Filed: 1966-02-01
Abstract: e -Caprolactone is prepared by feeding benzaldehyde to an oxidation zone containing cyclohexanone, oxidizing the mixture in the liquid phase by the action of molecular oxygen, recovering e -caprolactone and benzoic acid from the oxidation zone, converting the benzoic acid to cyclohexanone, and recycling the cyclohexanone thus produced to the oxidation zone. The temperature should be kept below 100 DEG  C., preferably between 20 DEG  and 50 DEG  C.  Suitable catalysts for the oxidation process are compounds of the metals of the Pt or Pd groups or compounds of other metals, e.g. Co, Mn, V, Zr, Al, Sb, Be, Fe or Cu.  Suitable solvents for the liquid reaction mixture are hydrocarbons, chlorinated hydrocarbons and esters.  In the example cobalt naphthenate is used.  The benzoic acid was converted in the presence of cupric benzoate and magnesium oxide to phenol which was then converted to cyclohexanone by passing a mixture of phenol vapour, nitrogen and hydrogen over a catalyst consisting of palladium on aluminium oxide.